7820380e
 “wangming”
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import { g as getDocument, a as getWindow } from '../shared/ssr-window.esm.mjs';
import { a as elementParents, b as elementOffset } from '../shared/utils.mjs';
/* eslint-disable consistent-return */
function Keyboard(_ref) {
let {
swiper,
extendParams,
on,
emit
} = _ref;
const document = getDocument();
const window = getWindow();
swiper.keyboard = {
enabled: false
};
extendParams({
keyboard: {
enabled: false,
onlyInViewport: true,
pageUpDown: true
}
});
function handle(event) {
if (!swiper.enabled) return;
const {
rtlTranslate: rtl
} = swiper;
let e = event;
if (e.originalEvent) e = e.originalEvent; // jquery fix
const kc = e.keyCode || e.charCode;
const pageUpDown = swiper.params.keyboard.pageUpDown;
const isPageUp = pageUpDown && kc === 33;
const isPageDown = pageUpDown && kc === 34;
const isArrowLeft = kc === 37;
const isArrowRight = kc === 39;
const isArrowUp = kc === 38;
const isArrowDown = kc === 40;
// Directions locks
if (!swiper.allowSlideNext && (swiper.isHorizontal() && isArrowRight || swiper.isVertical() && isArrowDown || isPageDown)) {
return false;
}
if (!swiper.allowSlidePrev && (swiper.isHorizontal() && isArrowLeft || swiper.isVertical() && isArrowUp || isPageUp)) {
return false;
}
if (e.shiftKey || e.altKey || e.ctrlKey || e.metaKey) {
return undefined;
}
if (document.activeElement && document.activeElement.nodeName && (document.activeElement.nodeName.toLowerCase() === 'input' || document.activeElement.nodeName.toLowerCase() === 'textarea')) {
return undefined;
}
if (swiper.params.keyboard.onlyInViewport && (isPageUp || isPageDown || isArrowLeft || isArrowRight || isArrowUp || isArrowDown)) {
let inView = false;
// Check that swiper should be inside of visible area of window
if (elementParents(swiper.el, `.${swiper.params.slideClass}, swiper-slide`).length > 0 && elementParents(swiper.el, `.${swiper.params.slideActiveClass}`).length === 0) {
return undefined;
}
const el = swiper.el;
const swiperWidth = el.clientWidth;
const swiperHeight = el.clientHeight;
const windowWidth = window.innerWidth;
const windowHeight = window.innerHeight;
const swiperOffset = elementOffset(el);
if (rtl) swiperOffset.left -= el.scrollLeft;
const swiperCoord = [[swiperOffset.left, swiperOffset.top], [swiperOffset.left + swiperWidth, swiperOffset.top], [swiperOffset.left, swiperOffset.top + swiperHeight], [swiperOffset.left + swiperWidth, swiperOffset.top + swiperHeight]];
for (let i = 0; i < swiperCoord.length; i += 1) {
const point = swiperCoord[i];
if (point[0] >= 0 && point[0] <= windowWidth && point[1] >= 0 && point[1] <= windowHeight) {
if (point[0] === 0 && point[1] === 0) continue; // eslint-disable-line
inView = true;
}
}
if (!inView) return undefined;
}
if (swiper.isHorizontal()) {
if (isPageUp || isPageDown || isArrowLeft || isArrowRight) {
if (e.preventDefault) e.preventDefault();else e.returnValue = false;
}
if ((isPageDown || isArrowRight) && !rtl || (isPageUp || isArrowLeft) && rtl) swiper.slideNext();
if ((isPageUp || isArrowLeft) && !rtl || (isPageDown || isArrowRight) && rtl) swiper.slidePrev();
} else {
if (isPageUp || isPageDown || isArrowUp || isArrowDown) {
if (e.preventDefault) e.preventDefault();else e.returnValue = false;
}
if (isPageDown || isArrowDown) swiper.slideNext();
if (isPageUp || isArrowUp) swiper.slidePrev();
}
emit('keyPress', kc);
return undefined;
}
function enable() {
if (swiper.keyboard.enabled) return;
document.addEventListener('keydown', handle);
swiper.keyboard.enabled = true;
}
function disable() {
if (!swiper.keyboard.enabled) return;
document.removeEventListener('keydown', handle);
swiper.keyboard.enabled = false;
}
on('init', () => {
if (swiper.params.keyboard.enabled) {
enable();
}
});
on('destroy', () => {
if (swiper.keyboard.enabled) {
disable();
}
});
Object.assign(swiper.keyboard, {
enable,
disable
});
}
export { Keyboard as default };
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